#include <stdio.h>

int main(int argc, char *argv[]) {

    int n = 0;
    scanf("%d", &n);

    for (size_t i = 0; i < n; i++)
    {
        int a, b;
        scanf("%d %d", &a, &b);
        printf("%d\n", a+b);
    }
    
    return 0;
}